/*
* Copyright 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
 * Copyright 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.common.logger;

import android.graphics.Typeface;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ScrollView;

/**
 * Simple fraggment which contains a LogView and uses is to output log data it
 * receives through the LogNode interface.
 */
public class LogFragment extends Fragment {

	private LogView mLogView;
	private ScrollView mScrollView;

	public LogFragment() {
	}

	@SuppressWarnings("deprecation")
	public View inflateViews() {
		mScrollView = new ScrollView(getActivity());
		ViewGroup.LayoutParams scrollParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
				ViewGroup.LayoutParams.MATCH_PARENT);
		mScrollView.setLayoutParams(scrollParams);

		mLogView = new LogView(getActivity());
		ViewGroup.LayoutParams logParams = new ViewGroup.LayoutParams(scrollParams);
		logParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
		mLogView.setLayoutParams(logParams);
		mLogView.setClickable(true);
		mLogView.setFocusable(true);
		mLogView.setTypeface(Typeface.MONOSPACE);

		// Want to set padding as 16 dips, setPadding takes pixels. Hooray math!
		int paddingDips = 16;
		double scale = getResources().getDisplayMetrics().density;
		int paddingPixels = (int) ((paddingDips * (scale)) + .5);
		mLogView.setPadding(paddingPixels, paddingPixels, paddingPixels, paddingPixels);
		mLogView.setCompoundDrawablePadding(paddingPixels);

		mLogView.setGravity(Gravity.BOTTOM);
		mLogView.setTextAppearance(getActivity(), android.R.style.TextAppearance_Holo_Medium);

		mScrollView.addView(mLogView);
		return mScrollView;
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

		View result = inflateViews();

		mLogView.addTextChangedListener(new TextWatcher() {
			@Override
			public void beforeTextChanged(CharSequence s, int start, int count, int after) {
			}

			@Override
			public void onTextChanged(CharSequence s, int start, int before, int count) {
			}

			@Override
			public void afterTextChanged(Editable s) {
				mScrollView.fullScroll(ScrollView.FOCUS_DOWN);
			}
		});
		return result;
	}

	public LogView getLogView() {
		return mLogView;
	}
}